white panicle2 encoding thioredoxin z, regulates plastid RNA editing by interacting with multiple organellar RNA editing factors in rice

white panicle2 encoding thioredoxin z, regulates plastid RNA editing by interacting with multiple organellar RNA editing factors in rice

© 2020 The Authors New Phytologist © 2020 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 229(2021), 5 vom: 29. März, Seite 2693-2706
1. Verfasser: Wang, Yunlong (VerfasserIn)
Weitere Verfasser: Wang, Yihua, Ren, Yulong, Duan, Erchao, Zhu, Xiaopin, Hao, Yuanyuan, Zhu, Jianping, Chen, Rongbo, Lei, Jie, Teng, Xuan, Zhang, Yuanyan, Wang, Di, Zhang, Xin, Guo, Xiuping, Jiang, Ling, Liu, Shijia, Tian, Yunlu, Liu, Xi, Chen, Liangming, Wang, Haiyang, Wan, Jianmin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Oryza sativa WP2 MORFs RNA editing TRX regulation Plant Proteins Thioredoxins 52500-60-4
Beschreibung
Zusammenfassung:© 2020 The Authors New Phytologist © 2020 New Phytologist Foundation.
Thioredoxins (TRXs) occur in plant chloroplasts as complex disulphide oxidoreductases. Although many biological processes are regulated by thioredoxins, the regulatory mechanism of chloroplast TRXs are largely unknown. Here we report a rice white panicle2 mutant caused by a mutation in the thioredoxin z gene, an orthologue of AtTRX z in Arabidopsis. white panicle2 (wp2) seedlings exhibited a high-temperature-sensitive albinic phenotype. We found that plastid multiple organellar RNA editing factors (MORFs) were the regulatory targets of thioredoxin z. We showed that OsTRX z protein physically interacts with OsMORFs in a redox-dependent manner and that the redox state of a conserved cysteine in the MORF box is essential for MORF-MORF interactions. wp2 and OsTRX z knockout lines show reduced editing efficiencies in many plastidial-encoded genes especially under high-temperature conditions. An Arabidopsis trx z mutant also exhibited significantly reduced chloroplast RNA editing. Our combined results suggest that thioredoxin z regulates chloroplast RNA editing in plants by controlling the redox state of MORFs
Beschreibung:Date Completed 14.05.2021
Date Revised 31.05.2022
published: Print-Electronic
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.17047